The patch titled
x86: use explicit copy in vdso_gettimeofday()
has been removed from the -mm tree. Its filename was
x86-use-explicit-copy-in-vdso_gettimeofday.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
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Subject: x86: use explicit copy in vdso_gettimeofday()
From: Andi Kleen <andi@xxxxxxxxxxxxxx>
Jeremy's gcc 3.4 seems to be unable to inline a 8 byte memcpy. But the
vdso doesn't support external references. Copy the structure members
of struct timezone explicitely instead.
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/vdso/vclock_gettime.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN arch/x86/vdso/vclock_gettime.c~x86-use-explicit-copy-in-vdso_gettimeofday arch/x86/vdso/vclock_gettime.c
--- a/arch/x86/vdso/vclock_gettime.c~x86-use-explicit-copy-in-vdso_gettimeofday
+++ a/arch/x86/vdso/vclock_gettime.c
@@ -106,9 +106,9 @@ int __vdso_gettimeofday(struct timeval *
do_realtime((struct timespec *)tv);
tv->tv_usec /= 1000;
if (unlikely(tz != NULL)) {
- /* This relies on gcc inlining the memcpy. We'll notice
- if it ever fails to do so. */
- memcpy(tz, >od->sys_tz, sizeof(struct timezone));
+ /* Avoid memcpy. Some old compilers fail to inline it */
+ tz->tz_minuteswest = gtod->sys_tz.tz_minuteswest;
+ tz->tz_dsttime = gtod->sys_tz.tz_dsttime;
}
return 0;
}
_
Patches currently in -mm which might be from andi@xxxxxxxxxxxxxx are
linux-next.patch
dma-mapping-add-the-device-argument-to-dma_mapping_error.patch
dma-mapping-add-the-device-argument-to-dma_mapping_error-bnx2x.patch
dma-mapping-add-the-device-argument-to-dma_mapping_error-sparc32.patch
dma-mapping-x86-per-device-dma_mapping_ops-support.patch
dma-mapping-x86-per-device-dma_mapping_ops-support-fix.patch
common-implementation-of-iterative-div-mod.patch
add-an-inlined-version-of-iter_div_u64_rem.patch
always_inline-timespec_add_ns.patch
gcov-architecture-specific-compile-flag-adjustments.patch
profile-likely-unlikely-macros.patch
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